Adjustable static balance valve

Abstract

The utility model relates to the technical field of balance valves, and discloses an adjustable static balance valve which comprises a valve body, a scale cover is arranged at the top end of the valve body, a hand wheel is arranged at the top end of the scale cover, a water pressing plate is arranged in the scale cover, a water inlet and a water outlet are formed in the threaded positions of the two ends of the valve body respectively, and the adjustable static balance valve can be conveniently connected with an external pipeline. And the arc-shaped water channel is arranged in the valve body, so that water flow can be guided, turbulence and energy loss are reduced, and the service life of the valve body is prolonged. The hand wheel is rotated, the water pressing plate and the water pressing cylinder are driven to move up and down through transmission of the lead screw, the overflowing area of the arc-shaped water channel is accurately adjusted, and flow regulation and control are achieved. The scale cover is provided with a graduated scale, the hand wheel is provided with a notch, the opening degree of the valve is conveniently and accurately mastered, the middle of the water pressing plate is sleeved with a sealing ring, the sealing performance of the valve is guaranteed, and the overall design improves the maintainability, expansibility and operation convenience and accuracy of a system.

Description

Technical Field

[0001] This utility model relates to the field of balancing valve technology, specifically an adjustable static balancing valve. Background Technology

[0002] Flow control is crucial in many fields, including industrial production, building water supply and drainage, and HVAC. Traditional flow valves often reveal numerous drawbacks when faced with complex operating conditions.

[0003] Patent publication number CN201884741U describes a method for regulating flow rate using a valve core shaft, spring, and adjusting screw. While this method can control flow to some extent through the interaction between the valve core and seat and the spring action, it only addresses maintaining a relatively stable output flow rate when the pressure difference between the valve inlet and outlet changes. It doesn't adequately consider the precision of flow regulation, the visual operation, the impact of the valve body structure on water flow efficiency and compatibility, or the reliability of the valve's sealing performance over long-term use. In practical applications, for chemical production processes with extremely high flow accuracy requirements, this method struggles to meet the precise flow rate requirements for batching, failing to provide operators with intuitive adjustment references and potentially leading to unstable product quality. Furthermore, the valve body structure, due to the lack of optimized water flow path, is prone to significant energy loss and water flow impact, reducing system energy efficiency and shortening valve lifespan. Moreover, insufficient sealing performance during long-term operation can cause leakage, affecting system pressure stability and increasing maintenance costs and safety risks. Therefore, an adjustable static balancing valve is proposed to overcome these defects, comprehensively improve the performance and reliability of flow control, and better meet the needs of modern industrial and civil fields for precise flow control, efficient operation and stable sealing. In order to solve the above problems, we have proposed an adjustable static balancing valve. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an adjustable static balancing valve, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an adjustable static balancing valve, comprising a valve body, a scale cover at the top of the valve body, a handwheel at the top of the scale cover, and a pressure plate inside the scale cover, and further comprising:

[0006] The lead screw, through its engagement with the second thread inside the scale cover, converts the rotation of the handwheel into the rotation of the lead screw, which in turn drives the pressure plate and the pressure cylinder at its bottom to move up and down. This enables precise adjustment of the position of the pressure cylinder within the arc-shaped waterway, thereby accurately controlling the flow area of ​​the arc-shaped waterway.

[0007] Preferably, the valve body has an opening at the top of the middle part, and the opening is threaded. Both ends of the valve body are threaded, and the two threaded ends are the water inlet and the water outlet, respectively.

[0008] Preferably, the valve body has an arc-shaped water channel on the side near the inlet, and the other end of the water channel extends toward the opening in the middle of the valve body. The interior of the valve body is connected to the inlet and outlet at both ends through the water channel in the middle.

[0009] Preferably, a scale cover is rotatably installed at the threaded end of the valve body, a first thread is fixedly installed at the bottom end of the scale cover, a scale ruler is provided in the middle of the scale cover, and a valve core cap is fixedly installed on the side of the scale cover near the first thread.

[0010] Preferably, the scale cover has a second thread inside, a lead screw is rotatably mounted on the second thread, the middle part of the lead screw has the same thread as the second thread, and the top of the scale cover has a thread.

[0011] Preferably, a connecting block is fixedly installed at the top of the lead screw, a handwheel is sleeved on the top of the connecting block, a sleeve is fixedly installed inside the handwheel, the handwheel has the same thread as the scale cover inside, and a notch is opened on the side of the handwheel corresponding to the scale.

[0012] Preferably, a pressure plate is rotatably installed inside the lead screw. The top of the pressure plate is threaded and is rotatably installed inside the lead screw via the thread. A sealing ring is sleeved in the middle of the pressure plate, and a pressure cylinder is fixedly installed at the bottom of the pressure plate. The size of the pressure cylinder is the same as that of the arc-shaped waterway.

[0013] Compared with the prior art, this utility model provides an adjustable static balancing valve, which has the following advantages:

[0014] 1. This adjustable static balancing valve, compared to the prior art document CN201884741U, discloses an adjustable dynamic flow balancing valve technology that uses a valve core shaft, spring, and adjusting screw to achieve flow regulation. However, this application improves the accuracy and visibility of flow regulation through the precise transmission and coordination of the handwheel, lead screw, and pressure cylinder. The design of this device is more convenient to operate and has a more precise control effect than the technology in CN201884741U. It has made significant and substantial progress in terms of the accuracy of flow regulation and the convenience of operation compared to the prior art document.

[0015] 2. Regarding the adjustable static balancing valve, compared with the prior art document CN201884741U, the valve body structure in the prior art document does not mention a similar arc-shaped waterway and standardized interface design. The arc-shaped waterway and threaded interface design in this application document effectively improves water flow efficiency, reduces impact, and enhances compatibility. This device has a greater advantage in valve body structure design than the prior art document, and has significantly improved water flow performance and ease of installation and maintenance. It is more adaptable to complex and ever-changing engineering application scenarios and ensures long-term stable and efficient operation of the system.

[0016] 3. Regarding the adjustable static balancing valve, compared to the prior art document CN201884741U, the prior art document did not emphasize the sealing design at the connection between the pressure plate and the screw rod, as is the case with this application. This application effectively prevents leakage through a sealing ring, improving the overall sealing performance of the valve. This device is more reliable in terms of sealing than the prior art document, better maintaining system pressure and flow stability, reducing energy waste and system failure risks caused by leakage, and ensuring the safety and stability of system operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the handwheel of this utility model;

[0020] Figure 4 This is a schematic diagram of the lead screw of this utility model;

[0021] Figure 5 This is a schematic diagram of the water pressure plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the scale cap of this utility model.

[0023] In the diagram: 1. Valve body; 2. Handwheel; 3. Scale cap; 4. Pressure plate; 5. Sleeve; 6. Lead screw; 7. Connecting block; 8. Pressure cylinder; 9. Sealing ring; 10. Valve core cap; 11. First thread; 12. Second thread. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 An adjustable static balancing valve includes a valve body 1, a scale cover 3 at the top of the valve body 1, a handwheel 2 at the top of the scale cover 3, and a pressure plate 4 inside the scale cover 3. It also includes:

[0026] The lead screw 6, through its engagement with the second thread 12 inside the scale cover 3, converts the rotational motion of the handwheel 2 into the rotation of the lead screw 6, which in turn drives the water pressure plate 4 and the water pressure cylinder 8 at its bottom to move up and down. This enables precise adjustment of the position of the water pressure cylinder 8 within the arc-shaped waterway, thereby accurately controlling the flow area of ​​the arc-shaped waterway.

[0027] Furthermore, the valve body 1 has an opening at the top of its middle section, and the opening is threaded. Both ends of the valve body 1 have a set of threads, with the two threads serving as the inlet and outlet, respectively. The threads at both ends of the valve body 1 facilitate connection with other components, providing a stable interface for water flow, enhancing the compatibility of the adjustable static balancing valve with external piping systems, making installation and disassembly more convenient, and helping to improve the maintainability and expandability of the entire system.

[0028] Furthermore, an arc-shaped water channel is provided inside the valve body 1 on the side near the inlet, and the other end of the water channel extends towards the opening in the middle of the valve body 1. The inside of the valve body 1 is connected to the inlet and outlet at both ends through the water channel in the middle. The arc-shaped water channel connects the inlet and outlet. This design can guide the water flow along a predetermined path, reduce water turbulence and energy loss, improve the flow efficiency of the water, and ensure the high efficiency performance of the valve. At the same time, the arc-shaped water channel design can reduce the impact of the water flow on the valve body and extend the service life of the valve body.

[0029] Furthermore, a scale cover 3 is rotatably installed at the threaded end of the valve body 1. A first thread 11 is fixedly installed at the bottom end of the scale cover 3. A scale ruler is provided in the middle of the scale cover 3. A valve core cap 10 is fixedly installed on the side of the scale cover 3 near the first thread 11. Users can conveniently adjust and control the opening degree of the valve by rotating the scale cover 3. The presence of the scale ruler provides users with an intuitive adjustment basis, which helps to accurately control the opening degree of the valve and improves the convenience and accuracy of operation.

[0030] Furthermore, a second thread 12 is provided inside the scale cover 3, and a lead screw 6 is rotatably mounted on the second thread 12. The middle part of the lead screw 6 is provided with the same thread as the second thread 12, and the top of the scale cover 3 is provided with a thread. The threaded engagement structure ensures that the lead screw 6 rotates stably inside the scale cover 3, providing a precise transmission mechanism for the adjustment of subsequent components. This realizes the function of adjusting other internal components of the valve by rotating the lead screw 6, ensuring the smoothness and reliability of the adjustment process.

[0031] Furthermore, a connecting block 7 is fixedly installed at the top of the lead screw 6, and a handwheel 2 is sleeved on the top of the connecting block 7. A sleeve 5 is fixedly installed inside the handwheel 2, and the handwheel 2 has the same thread as the scale cover 3. A notch is opened on the side of the handwheel 2 corresponding to the scale. The user can rotate the handwheel 2 to drive the lead screw 6 to rotate. The design of the handwheel 2 is ergonomic and easy to operate. At the same time, its cooperation structure with the scale cover 3 and the lead screw 6 provides the user with a simple and convenient operating interface. In addition, the notch on the handwheel 2 makes it easy for the user to observe the scale, further improving the accuracy and convenience of operation.

[0032] Furthermore, a pressure plate 4 is rotatably installed inside the lead screw 6. The top of the pressure plate 4 is threaded, and the pressure plate 4 is rotatably installed inside the lead screw 6 via the thread. A sealing ring 9 is sleeved in the middle of the pressure plate 4, and a pressure cylinder 8 is fixedly installed at the bottom of the pressure plate 4. The size of the pressure cylinder 8 is the same as that of the arc-shaped water channel. The sealing ring 9 effectively prevents water leakage from the connection between the pressure plate 4 and the lead screw 6, ensuring the sealing performance of the valve. The pressure cylinder 8 can cooperate well with the arc-shaped water channel, enabling better control of the water flow. The pressure plate 4 is rotatably installed inside the lead screw 6 via the thread, so that the position of the pressure plate 4 can be precisely adjusted by rotating the lead screw 6. This adjustment method is more flexible and can precisely control the position of the pressure plate 4 according to actual needs, thereby achieving precise control of the water flow and providing a precise adjustment means for the valve's flow regulation function.

[0033] Structural Description: 1. Valve Body 1: Function: Provides structural support for the entire valve. It has an inlet and an outlet inside, providing channels for water flow. The internal arc-shaped water channel guides the water flow, reducing turbulence and energy loss. It also works with other components to realize the overall function of the valve. Positional Relationship: It is located at the outermost layer of the entire valve and is the basic carrier for installing other components. It has an inlet and an outlet at both ends, and an opening at the top center for installing the scale cap 3. Principle: Through the unique internal arc-shaped water channel design, it connects the inlet and outlet, guides the water flow along a predetermined path, reduces the impact of the water flow on itself, and improves the efficiency of water flow.

[0034] 2. Handwheel 2: Function: User operation component. By rotating it, the screw 6 is rotated to adjust the valve opening. Position: Located at the top of the scale cover 3. It is threaded with the top of the scale cover 3 through internal thread, and its top is sleeved on the connecting block 7 of the screw 6. Principle: Utilizing the transmission principle of threaded engagement, when the user rotates the handwheel 2, the rotational motion is transmitted to the screw 6, thereby driving the action of other components.

[0035] 3. Scale cover 3: Function: Installed between handwheel 2 and valve body 1, with internal threads that engage with screw 6 to enable screw 6 to rotate. The scale in the middle provides a visual reference for users to adjust the valve opening. Position: Rotatably installed at the threaded top of valve body 1, the top of which connects to handwheel 2. Internally, it houses screw 6 and pressure plate 4, among other components. Principle: Through its internal second thread 12 engaging with screw 6, it converts the rotation of handwheel 2 into the rotation of screw 6. Simultaneously, the scale indicates the position, allowing users to accurately control the valve opening.

[0036] 4. Water pressure plate 4: Function: Moves up and down under the drive of screw 6, thereby moving the water pressure cylinder 8, changing the flow area of ​​the arc-shaped water channel, and realizing the regulation of water flow. Position: Installed inside screw 6, the top end is connected to screw 6 by thread, the bottom end is fixed to the water pressure cylinder 8, and the middle part is fitted with a sealing ring 9. Principle: Utilizing the principle of threaded transmission, when screw 6 rotates, water pressure plate 4 moves up and down along screw 6 due to the threaded connection, thereby adjusting the position of water pressure cylinder 8 in the arc-shaped water channel and controlling the flow area.

[0037] 5. Sleeve 5: Function: It is fixed inside the handwheel 2 and provides structural support and auxiliary transmission for the handwheel 2. Position: It is fixedly installed inside the handwheel 2. Principle: As part of the structure of the handwheel 2, it enhances the structural stability of the handwheel 2 and participates in the entire valve operation transmission process together with the handwheel 2.

[0038] 6. Screw 6: Function: Converts the rotation of handwheel 2 into its own rotation, thereby driving the pressure plate 4 and the pressure cylinder 8 at its bottom to move up and down, precisely adjusting the flow area of ​​the arc-shaped water channel. Position: It is rotatably installed inside the scale cover 3 through the cooperation of the middle thread with the second thread 12 inside the scale cover 3. The top fixed connecting block 7 is connected to the handwheel 2, and the pressure plate 4 is rotatably installed inside. Principle: Utilizing the mechanical transmission principle of the threaded engagement, it rotates under the drive of handwheel 2 to achieve precise adjustment of the position of pressure plate 4 and pressure cylinder 8.

[0039] 7. Connecting block 7: Function: Connects handwheel 2 and lead screw 6 so that the two can move together. Positional relationship: The top end is sleeved on handwheel 2, and the bottom end is fixed to the top of lead screw 6. Principle: As a connecting component, it transmits the rotational movement of handwheel 2 to lead screw 6 to ensure the consistency of the movement of the two.

[0040] 8. Water pressure cylinder 8: Function: In conjunction with the arc-shaped water channel, it changes the flow area of ​​the arc-shaped water channel by moving up and down, thereby controlling the water flow rate. Position: Fixed at the bottom of the water pressure plate 4, located inside the arc-shaped water channel. Principle: Moves up and down inside the arc-shaped water channel under the action of the water pressure plate 4. By occupying different arc-shaped water channel spaces, it changes the flow area of ​​the water flow, thereby achieving flow control.

[0041] 9. Sealing ring 9: Function: Prevents water from leaking from the connection between the pressure plate 4 and the screw rod 6, ensuring the sealing performance of the valve. Position: Fitted in the middle of the pressure plate 4. Principle: Utilizes its own sealing characteristics to fill the gap at the connection between the pressure plate 4 and the screw rod 6, preventing water from flowing through and achieving a sealing effect.

[0042] 10. Valve core cap 10: Function: Installed on the side of the scale cap 3 near the first thread 11, it plays a protective and auxiliary sealing role. Position: Fixedly installed on the side of the scale cap 3 near the first thread 11. Principle: It protects the relevant internal components of the scale cap 3 through its own structure, and at the same time enhances the sealing performance of the entire valve.

[0043] 11. First thread 11: Function: Used for connecting the scale cap 3 to the valve body 1 and for installing with the valve core cap 10. Position: Fixed at the bottom of the scale cap 3. Principle: Through threaded engagement with the top of the valve body 1, the scale cap 3 and the valve body 1 are rotated together. At the same time, it is installed with the valve core cap 10 to ensure a stable connection of the relevant components.

[0044] 12. Second thread 12: Function: It engages with the thread in the middle of the lead screw 6 to achieve stable rotation of the lead screw 6 within the scale cover 6, providing a precise transmission mechanism for the internal components of the regulating valve. Position: It is located inside the scale cover 3. Principle: It utilizes the mechanical transmission principle of the thread engagement to convert the rotational motion of the handwheel 2 into the rotation of the lead screw 6, ensuring the smoothness and reliability of the adjustment process.

[0045] Instructions for use

[0046] Water enters through the inlet of valve body 1. Because an arc-shaped water channel is provided on the side of valve body 1 near the inlet, the water flows along this channel. This arc-shaped water channel extends to the opening in the middle of valve body 1 and finally flows to the outlet, thus achieving flow from the inlet to the outlet. When the user needs to adjust the valve opening, it is operated by the handwheel 2. A sleeve 5 is fixedly installed inside the handwheel 2, and the handwheel 2 is threaded onto the top of the scale cover 3 through an internal thread identical to that of the scale cover 3. Simultaneously, the top of the handwheel 2 is connected to the connecting block 7 of the lead screw 6. When the user rotates handwheel 2, it drives screw 6 to rotate. Screw 6 is rotatably mounted inside scale cover 3 via a thread in its center that engages with a second thread 12 inside scale cover 3. Therefore, the rotation of handwheel 2 is converted into the rotation of screw 6. Since pressure plate 4 is rotatably mounted inside screw 6 via a thread, when screw 6 rotates, it drives pressure plate 4 to move up and down along screw 6. Pressure cylinder 8 is fixedly mounted at the bottom of pressure plate 4, and the size of pressure cylinder 8 is the same as that of the arc-shaped water channel. When pressure plate 4 moves up and down, pressure cylinder 8 moves within the arc-shaped water channel, thereby changing the flow area of ​​the arc-shaped water channel. When pressure cylinder 8 moves downward, it occupies more of the arc-shaped water channel. The space is reduced, thus decreasing the flow area of ​​the water flow and consequently reducing the flow rate. When the pressure cylinder 8 moves upward, the flow area of ​​the arc-shaped water channel increases, and the flow rate increases accordingly, thereby regulating the water flow. To ensure the valve's sealing performance, a sealing ring 9 is fitted in the middle of the pressure plate 4 to prevent water from leaking out from the connection between the pressure plate 4 and the screw 6 during the adjustment process, ensuring the normal operation of the valve and good sealing performance. A scale is provided in the middle of the scale cover 3, and a notch is provided on the side of the handwheel 2 corresponding to the scale. When operating the handwheel 2, the user can observe the scale through the notch and accurately grasp the valve opening through the scale indication, thereby achieving precise control of the flow rate.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable static balancing valve, comprising a valve body (1), wherein a scale cover (3) is provided at the top of the valve body (1), a handwheel (2) is provided at the top of the scale cover (3), and a pressure plate (4) is provided inside the scale cover (3), characterized in that, Also includes: The lead screw (6) engages with the second thread (12) inside the scale cover (3) to convert the rotation of the handwheel (2) into the rotation of the lead screw (6), which in turn drives the pressure plate (4) and the pressure cylinder (8) at its bottom to move up and down. This enables precise adjustment of the position of the pressure cylinder (8) in the arc-shaped waterway, thereby accurately controlling the flow area of ​​the arc-shaped waterway.

2. The adjustable static balancing valve according to claim 1, characterized in that: The valve body (1) has an opening at the top of the middle part, and the opening is threaded. Both ends of the valve body (1) are threaded, and the two ends of the thread are the inlet and outlet respectively.

3. An adjustable static balancing valve according to claim 2, characterized in that: An arc-shaped water channel is provided on the side of the valve body (1) near the water inlet, and the other end of the water channel extends to the opening in the middle of the valve body (1). The interior of the valve body (1) is connected to the water inlet and outlet at both ends through the water channel in the middle.

4. An adjustable static balancing valve according to claim 1, characterized in that: A scale cap (3) is rotatably installed at the threaded end of the valve body (1). A first thread (11) is fixedly installed at the bottom end of the scale cap (3). A scale ruler is opened in the middle of the scale cap (3). A valve core cap (10) is fixedly installed on the side of the scale cap (3) near the first thread (11).

5. An adjustable static balancing valve according to claim 4, characterized in that: The scale cover (3) has a second thread (12) inside, and a lead screw (6) is rotatably mounted on the second thread (12). The middle part of the lead screw (6) has the same thread as the second thread (12), and the top of the scale cover (3) has a thread.

6. An adjustable static balancing valve according to claim 5, characterized in that: A connecting block (7) is fixedly installed at the top of the lead screw (6), and a handwheel (2) is sleeved on the top of the connecting block (7). A sleeve (5) is fixedly installed inside the handwheel (2). The handwheel (2) has the same thread as the scale cover (3) inside. A notch is opened on one side of the handwheel (2) corresponding to the scale.

7. An adjustable static balancing valve according to claim 6, characterized in that: A pressure plate (4) is rotatably installed inside the lead screw (6). The top of the pressure plate (4) is threaded, and the pressure plate (4) is rotatably installed inside the lead screw (6) through the thread. A sealing ring (9) is sleeved in the middle of the pressure plate (4). A pressure cylinder (8) is fixedly installed at the bottom of the pressure plate (4). The size of the pressure cylinder (8) is the same as that of the arc-shaped waterway.

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